Abstract: A two-stage ASBR technique was used to treat kitchen garbage at the lab scale. The results showed that the total removal efficiency of COD and TS reached 77.6% and 72.21%, respectively. The efficiency of methane yielding was 212 mL/g and 0.67 L/(L·d), respectively. A pH of 4～5 was recommended for hydrolysis phase and 7～8 for methane phase. The HRT of hydrolysis phase and methane phase were 5 d and 13.3 d, respectively. The TS concentration of 8% in hydrolysis phase and 7% in methane phase were found to be optimal. The OLR of 16 g/(L·d) in hydrolysis phase and 5.23 g/(L·d) in methane phase were recommended.